Buck & Boost Inductor Calculator

Enter the buck or boost converter range, output requirement, and switching frequency. The calculator suggests cylinder or toroidal core size, turns, and SWG with automatic or manual selection.

01

Converter topology

02

Electrical requirement

03

Core style

04

Manual parts

Automatic mode picks the smallest practical standard core and wire size for the required inductance and peak current. Manual mode lets you force nearby stock parts for either buck or boost topology.

Change any value after calculation to recalculate automatically.